<div class="leftbox">
<div class="l_nav2">
    <div class="ta1">
        <strong>一年级</strong>
        <div class="leftbgbt"></div>
    </div>
    <div class="cdlist" style="display: block">
        <div><a href="{% url 'classname' %}?g=0&c=0">一班</a></div>
        <div><a href="{% url 'classname' %}?g=0&c=1">二班</a></div>
        <div><a href="{% url 'classname' %}?g=0&c=2">三班</a></div>
        <div><a href="{% url 'classname' %}?g=0&c=3">四班</a></div>
        <div><a href="{% url 'classname' %}?g=0&c=4">五班</a></div>
        <div><a href="{% url 'classname' %}?g=0&c=5">六班</a></div>
        <div><a href="{% url 'classname' %}?g=0&c=6">七班</a></div>
        <div><a href="{% url 'classname' %}?g=0&c=7">八班</a></div>
        <div><a href="{% url 'classname' %}?g=0&c=8">九班</a></div>
        <div><a href="{% url 'classname' %}?g=0&c=9">十班</a></div>
    </div>
    <div class="ta1">
        <strong>二年级</strong>
        <div class="leftbgbt2"></div>
    </div>
    <div class="cdlist" >
         <div><a href="{% url 'classname' %}?g=1&c=0">一班</a></div>
        <div><a href="{% url 'classname' %}?g=1&c=1">二班</a></div>
        <div><a href="{% url 'classname' %}?g=1&c=2">三班</a></div>
        <div><a href="{% url 'classname' %}?g=1&c=3">四班</a></div>
        <div><a href="{% url 'classname' %}?g=1&c=4">五班</a></div>
        <div><a href="{% url 'classname' %}?g=1&c=5">六班</a></div>
        <div><a href="{% url 'classname' %}?g=1&c=6">七班</a></div>
        <div><a href="{% url 'classname' %}?g=1&c=7">八班</a></div>
        <div><a href="{% url 'classname' %}?g=1&c=8">九班</a></div>
        <div><a href="{% url 'classname' %}?g=1&c=9">十班</a></div>
    </div>
    <div class="ta1">
        <strong>三年级</strong>
        <div class="leftbgbt2"></div>
    </div>
     <div class="cdlist">
         <div><a href="{% url 'classname' %}?g=2&c=0">一班</a></div>
        <div><a href="{% url 'classname' %}?g=2&c=1">二班</a></div>
        <div><a href="{% url 'classname' %}?g=2&c=2">三班</a></div>
        <div><a href="{% url 'classname' %}?g=2&c=3">四班</a></div>
        <div><a href="{% url 'classname' %}?g=2&c=4">五班</a></div>
        <div><a href="{% url 'classname' %}?g=2&c=5">六班</a></div>
        <div><a href="{% url 'classname' %}?g=2&c=6">七班</a></div>
        <div><a href="{% url 'classname' %}?g=2&c=7">八班</a></div>
        <div><a href="{% url 'classname' %}?g=2&c=8">九班</a></div>
        <div><a href="{% url 'classname' %}?g=2&c=9">十班</a></div>
    </div>

    <div class="ta1">
          <a href="/teacher/jiaowu" target="_blank">
              <strong>教务中心</strong>
          </a>
        <div class="leftbgbt2">
        </div>
    </div>

    <div class="ta1">
        <a href="/teacher/hudong"
           target="_blank"><strong>师生互动</strong></a>
        <div class="leftbgbt2">
        </div>
    </div>
</div>
</div>